Sampleite
氯磷钠铜矿
🗣️ 情景例句
Would you please try to keep quiet at this hour?
这么晚了，你能不能尽量保持安静。
In college I majored in physics, What was you major?
大学时我主修物理，你主修什么呢？
At that moment, a large black car with four officers inside it, stopped at the camp gates.
正在此时，一辆黑色大轿车在军营门口停了下来。里面坐了4个军官。